https://www.abortionprocedures.com/induction/
A third trimester induction abortion is performed at 25 weeks LMP (25 weeks since the first day of the woman’s last period) to term. At 25 weeks, a baby is almost fully-developed and is considered viable, meaning he or she could survive outside the womb. For this reason, the abortionist will usually first kill the baby in utero by injecting a substance that causes cardiac arrest, and induces the mother’s labor to deliver her baby stillborn.